How to DHCP Server Failover Configuration

DHCP Server has an important place in ip distribution. Because of this situation, the redundant structure must be installed. This article describes step-by-step how to configure DHCP Server as failover. Two servers are needed for this process. DHCP roles must be installed on these servers. In the next step, you can configure load balance or standby. Load balance provides redundancy by distributing the load. When you define Standby, it works as active and passive. When it is defined as standby, one of the dhcp server automatically switches to another when there is a problem.

Click to next.

Select to Role-base or feature-base installation.

Click to Next.

Select DHCP Server. Click to Next.

Click to Next.

Click to Install.

Click to Complete DHCP configuration.

Click to Next.

Click to Commit.

Click to Close.

Tools – DHCP select.

DHCP Server Configurations

DHCP Server setup complete.
DHCP Server configuration process

Right-click IPV4 and select the new scope option.

Enter Scope Name

Enter the range of addresses that the scope distributes.

Add Exclusions and Delay. Clickto next

Enter Lease Duration.

Enter Default Gateway IP Address

Write the second domain controller ip address or hostname.

If you have a wins server, enter the ip address.

If yes, the scope will be activated immediately.

Scope creation completed.

Switch to the DHCP Server setup on the other server.

Click to Add Roles and features.

Click to next.

Select to Role-base or feature-base installation.

Click to Next.

Select DHCP Server. Click to Next.

Click to Next.

Click to Complete DHCP Configuration.

Click to Next.

Click to Commit.

Click to Close.

Go back to the server where we first set up the DHCP Server.
Open DHCP Server Console.
Click to Configure Failover…

Click to next.

Click to Add Server and Browse…

The hostname of the second server is entered.

Click to Next.

Load balance


If the DHCP Failover configuration is configured as Load balance, the DHCP Server balances the load between the two DHCP servers. With this configuration, two DHCP Server servers in our environment will serve the devices in the environment.

Standby

If the DHCP Failover configuration is configured as Hot Standby, my server W2019DC2 is configured passively and my server W2019DC1 acts as Primary, and a copy of the TCP / IP configuration is backed up on my second DHCP Server named W2019DC2. With this configuration, W2019DC1 is the primary DHCP server in the environment. My server named W2019DC1 In case of a primary problem or if it fails, my second DHCP server named W2019DC2 is activated and continues to distribute the TCP / IP configuration.

Click to Finish.

Failover configure completed.

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